pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.37	IUPAC digitized pKa	0	-1	CCc1c[n+]([O-])c(C(=O)O)cc1[N+](=O)[O-]	CCc1c[n+]([O-])c(C(=O)[O-])cc1[N+](=O)[O-]	mol10623	CCc1c[n+]([O-])c(C(=O)O)cc1[N+](=O)[O-]